Finding the Fourth Proportional to 1,425.72, 1,966.33 and 1,197.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,425.72 : 1,966.33 = 1,197.73 : x
2. Step 2: Convert to fraction form
   1,425.72/1,966.33 = 1,197.73/x
3. Step 3: Cross multiply
   1,425.72x = 1,966.33 × 1,197.73
4. Step 4: Simplify right side
   1,425.72x = 2,355,132.43
5. Step 5: Solve for x
   x = 2,355,132.43/1,425.72
6. Step 6: Final answer
   x = 1,651.89